C it’s 366 cm that’s how you would know the rectangular board
Answer:
the answer is D
Step-by-step explanation:
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Answer:

Step-by-step explanation:
Given


Required
Write the equation of the function 
Express the function as:

In: 

--- (1)
In 

--- (2)
Divide (2) by (1)






Substitute 5/6 for b in (1)






The function: 

Should be C right? A rectangle demands that the diagonals are congruent